Alert archive / Texas / Mesoscale Discussions in 2007

Mesoscale Discussion 948

June 1, 200729 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 1, 2007, 7:58 AM CDT for 29 counties in Texas. It was in force for 62 min.

The area

The outline as issued.

The facts

Issued: Jun 1, 2007, 7:58 AM CDT (12:58 UTC)
Expired: Jun 1, 2007, 9:00 AM CDT
In force: 62 min
Issued by: the Storm Prediction Center

All 29 counties

Armstrong County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hutchinson County, TX, Lamb County, TX, Lubbock County, TX, Moore County, TX, Motley County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Swisher County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 26 km from the middle of the area, began a volume at 13:00 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 1.0 hours before the alert went out and 25 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1384 J/kg
Mixed-layer CIN: -249 J/kg
Mixed-layer LCL: 1230 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 383 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 31, 7:52 PM CDT	Mesoscale Discussion	SPC	Briscoe, Childress, Cochran, Cottle, Crosby, Dickens and 15 more	83 min
May 31, 9:07 PM CDT	Mesoscale Discussion	SPC	Hansford, Hemphill, Lipscomb, Ochiltree, Roberts, Wheeler	53 min
May 31, 9:38 PM CDT	Severe Thunderstorm Watch	SPC	Carson, Collingsworth, Donley, Gray, Hansford, Hemphill and 5 more	7 hr
May 31, 10:39 PM CDT	Severe Thunderstorm Watch	SPC	Archer, Baylor, Childress, Clay, Cottle, Crosby and 13 more	6 hr
Jun 1, 2:24 AM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Clay, Cottle, Crosby, Dickens and 22 more	66 min
Jun 1, 3:18 AM CDT	Mesoscale Discussion	SPC	Hardeman	87 min
Jun 1, 1:45 PM CDT	Mesoscale Discussion	SPC	Archer, Armstrong, Bailey, Baylor, Briscoe, Castro and 31 more	60 min
Jun 1, 2:03 PM CDT	Tornado Watch	SPC	Archer, Bailey, Baylor, Briscoe, Castro, Childress and 20 more	7 hr
Jun 1, 5:30 PM CDT	Mesoscale Discussion	SPC	Archer, Bailey, Baylor, Borden, Briscoe, Castro and 36 more	60 min
Jun 1, 5:48 PM CDT	Severe Thunderstorm Watch	SPC	Callahan, Eastland, Erath, Fisher, Haskell, Hood and 12 more	6 hr

Nearby

Mesoscale Discussions in Texas, 2007 Every mesoscale discussion in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.